NORTH LONDON WASTE AUTHORITY NORTH LONDON HEAT AND POWER PROJECT
DESIGN AND ACCESS STATEMENT
The Planning Act 2008 The Infrastructure Planning (Applications: Prescribed Forms and Procedure) Regulations 2009 Regulation 5 (2) (q) AD05.07
Arup | Grimshaw Revision 0 October 2015 This report takes into account the particular instructions and requirements of our client. It is not intended for and should not be relied upon by any third party and no responsibility is undertaken to any third party.
AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW CONTENTS
Section 1 Introduction 2 Section 2 Project Brief 6 Section 3 North London Heat and Power Project 10 Section 4 Site and Context 18 4.1 Introduction 4.2 Application Site 4.3 Surrounding area 4.4 Historic context 4.5 Socio-economic context 4.6 Topography and geology 4.7 Watercourses and drainage 4.8 Landscape features and ecology 4.9 Transport and access 4.10 Visual context Section 5 Design Objectives and Process 44 Section 6 The Proposals 50 6.1 Site uses and layout 6.2 Access and circulation 6.3 Scale, height and massing 6.4 Appearance and materials 6.5 Landscape and ecology 6.6 Utilities 6.7 District heating pipework safeguarding 6.8 Carbon reduction measures 6.9 Lighting 6.10 Temporary Laydown Area 6.11 Project Stages 6.12 Building Maintenance 6.13 Safety and security Appendix A Planning Policy A1
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW SECTION 1. INTRODUCTION
1.1 INTRODUCTION 1.2 PURPOSE OF THIS DESIGN AND ACCESS STATEMENT 1.3 DESIGN AND ACCESS STATEMENT STRUCTURE 1.4 THE NORTH LONDON WASTE AUTHORITY 1.1 INTRODUCTION 1.2 PURPOSE OF THIS DAS
This Design and Access Statement (DAS) has been prepared No specific statutory requirement is set out in the Planning Act It should be noted that in respect of design the Application is to support North London Waste Authority’s (the Applicant’s) 2008 (as amended) for the production of a DAS to support DCO seeking consent for a series of parameters that define the application (the Application) for a Development Consent Order applications. This DAS has therefore been prepared in line with location, size and shape of the proposed buildings alongside (DCO) made pursuant to the Planning Act 2008 (as amended). guidance set out in: design principles that would guide the detailed appearance of a. National Policy Statements for Energy (NPS EN-1)1 and the Project. The Application is based on the parameters set out The Application is for the North London Heat and Power for Renewable Energy Infrastructure (NPS EN-3)2 outline in the Book of Plans, which identify: Project (the Project) comprising the construction, operation and criteria for good design which should be followed in a. Works Zones for each work or group of works (to establish maintenance of an Energy Recovery Facility (ERF) of around 70 applications for energy infrastructure including functionality, the area in which the development can be located); and megawatts (MWe) at the Edmonton EcoPark in north London fitness for purpose, sustainability alongside good aesthetics. b. Building Envelopes (to establish the maximum building with associated development, including a Resource Recovery Section 4.5 of NPS EN-1 sets out the requirement to length, width, height and footprint). Facility (RRF). The proposed ERF would replace the existing demonstrate in application documents how the design Energy from Waste (EfW) facility at the Edmonton EcoPark. process was conducted and how the proposed design This approach is proposed as there are some aspects of the evolved; Project design that require design flexibility and cannot be This Statement, produced pursuant to Regulation 5 (2) b. In addition, the Edmonton EcoPark Planning Brief finalised in advance of the detailed design which would be (q) of the Applications: Prescribed Forms and Procedure Supplementary Planning Document (Edmonton EcoPark undertaken following appointment of a contractor should the Regulations 2009 (as amended) and Appendix 1 to the Planning SPD)3 (Paragraph 4.2.16) and Core Policy 38 of LB Enfield’s DCO be granted. As such, all illustrations provided in this DAS Inspectorate Advice Note 6 (June, 2012) should be read Core Strategy4, set out a requirement for the production of (see any figure name prefixed with ‘Illustrative’) should be read alongside the other information that has been submitted with a DAS for any proposed development on the Edmonton as an expression of how the parameters and proposed design the Application, in accordance with the statutory requirements EcoPark; and principles could be delivered. set out in Regulation 5, 6 and 7 of the Infrastructure Planning c. Section 9 of the Town and Country Planning (Development (Applications: Prescribed Forms and Procedure) Regulations The Design Code Principles (AD02.02) provide further design 2009 (as amended). Management Procedure) (England) (Amendment) Order 2015 sets out the requirements for DAS preparation for guidance to ensure that the Project is implemented consistently planning applications under the Town and Country Planning and in accordance with the design objectives established in this Act 1990, alongside National Planning Practice Guidance DAS, and as considered within the Application. The proposed (NPPG)5 (Paragraphs 030 to 034) published in March 2014. design parameters set the framework for detailed design and would be used as the guiding framework for discharge of the In line with this guidance, this DAS explains the design relevant requirements in the DCO. This approach has been principles and concepts, the steps taken to appraise the context proposed to provide certainty to all parties as to the scope of and the design development and response to context as well as the detailed design. the approach to access.
1 Department of Energy and Climate Change (2011) Overarching National Policy Statement for Energy (EN-1) 2 Department of Energy and Climate Change (2011) National Policy Statement for Renewable Energy Infrastructure (EN-3) 3 LB Enfield (2013) Edmonton EcoPark Planning Brief Supplementary Planning Document to the Local Plan 4 LB Enfield (2010) Enfield Plan Core Stratet 2010-2025 5 Department for Communities and Local Government (2015) National Planning Practice Guidance
2 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW 1.3 DAS STRUCTURE 1.4 THE APPLICANT
In addition to this introduction, this DAS comprises the following Established in 1986, the Applicant is a statutory authority sections: whose principal responsibility is the disposal of waste collected a. Section 2 Project brief - summarises the background to the by the seven north London boroughs of Barnet, Camden, Project, the Applicant’s objectives for waste management in Enfield, Hackney, Haringey, Islington and Waltham Forest (the north London and the Project brief; Constituent Boroughs) as shown in Figure 1.1. b. Section 3 The Project - summarises the key Project components and operational requirements; The Applicant is the UK’s second largest waste disposal authority, handling approximately 3 per cent of the total national c. Section 4 Site and context – describes the Application Site Local Authority Collected Waste (LACW) stream. Since 1994 as existing, including the Edmonton EcoPark and Temporary the Applicant has managed its waste arisings predominantly Laydown Area, and its wider context including key contextual through its waste management contract with LondonWaste elements which have informed the design; Limited (LWL) and the use of the existing EfW facility at the d. Section 5 Design objectives and process – describes the existing Edmonton EcoPark and landfill outside of London. design objectives that respond to the context and that have Edmonton EcoPark informed the design as well as the iterative design process that has shaped the Project; and e. Section 6 The proposals – outlines the proposals for key ENFIELD components of the Project and design development.
BARNET
HARINGEY WALTHAM FOREST
HACKNEY CAMDEN ISLINGTON
Figure 1.1: North London Waste Authority (Constituent Boroughs)
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | 3 THIS PAGE IS INTENTIONALLY LEFT BLANK
4 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW SECTION 2. PROJECT BRIEF
2.1 CONTEXT 2.2 PROJECT BRIEF SECTION 2. PROJECT BRIEF 2.1 CONTEXT 2.2 BRIEF
Working with the Constituent Boroughs, North London The Edmonton EcoPark is a site of about 16 hectares which The Project includes: Waste Authority (NLWA) encourages and promotes the three is used for waste management and is protected by planning • an ERF and associated buildings, plant and works; messages of reduce, re-use and recycle through waste policies as a waste site. Current waste management activities • relocation of any existing facilities to be retained on the prevention work in the community. on the Edmonton EcoPark include the existing EfW facility; an Edmonton EcoPark; and In-Vessel Composting (IVC) facility; a Bulky Waste Recycling In 2012/13 households in north London achieved a re-use, Facility (BWRF) and a Fuel Preparation Plant (FPP). • demolition of the existing EfW facility and safeguarding recycling and composting rate of approximately 32 per cent. By of that area of the Edmonton EcoPark for future waste 2020, NLWA wants at least half of all north London’s waste to The existing EfW facility has served north London well for development. be recycled. almost 45 years and has diverted more than 21 million tonnes of the waste which would have otherwise gone to landfill. It’s had Even if this 50 per cent target is reached there would still be multi-million pound investments over the decades but it is likely waste left over that needs to be dealt with. NLWA wants to divert to reach the end of its useful life in around 10 years. waste currently sent to landfill and instead use it to generate power to homes and businesses. A site selection exercise (refer to the Alternatives Assessment Report (AD05.03) for further details) identified the Edmonton Landfill isn’t a long-term option because: EcoPark as the most suitable site for a new ERF as it is • it produces methane which is a potent greenhouse gas; identified as an existing waste site in the London Plan6 and draft 7 • landfill sites are almost all outside London; and North London Waste Plan (NLWP) , is available to the Applicant for use for waste management purposes, and is of sufficient • taxation makes it very expensive. size to accommodate new facilities while ensuring continuity of waste treatment during the period of construction of new Today, waste from households in north London is collected by facilities. the Constituent Boroughs (the waste collection authorities). Recycling is delivered either directly or dropped off then Waste forecasts for the future show that the amount of waste delivered in larger vehicles to a materials recovery recycling created in north London will increase. Even reaching recycling facility where it is sorted before being passed on to a targets, the proposed facility would be able to manage up to reprocessor such as a paper mill. North London’s recycling 700,000 tonnes of waste a year at a peak level. In this way, the either goes to a recycling facility in Bow in east London or proposed ERF would safeguard an existing waste management to a recycling facility in the London Borough of Enfield (LB site and help provide a solution to the whole of north London’s Enfield) for sorting. Garden and kitchen waste from six of the waste volume while reducing the need for fossil fuels for energy Constituent Boroughs is delivered directly to a composting generation. plant at the Edmonton EcoPark. The composting facility is run by LWL, which is a company wholly owned by NLWA. Enfield’s The replacement facility would be built using today’s most garden and kitchen waste is delivered elsewhere. advanced and proven technology. It would be one of the most effective of its kind by current standards and have even better Household waste that isn’t recycled or composted is delivered emission controls than the existing EfW facility. to the existing EfW facility at the Edmonton EcoPark, where it is used to generate electricity, enough to power 72,000 homes. Any waste that cannot be processed in the existing EfW facility is sent to landfill sites outside of London.
6 Mayor of London (2015) The London Plan: The Spatial Development Strategy for London Consolidated with Alterations since 2011 7 North London Waste Authority (2015) Draft North London Waste Plan Regulation 18
6 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW EDMONTON ECOPARK
N
Figure 2.1. Edmonton EcoPark location
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | 7 THIS PAGE IS INTENTIONALLY LEFT BLANK SECTION 3. THE PROJECT
3.1 THE PROJECT 3.2 PRINCIPAL DEVELOPMENT 3.3 ASSOCIATED DEVELOPMENT
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | 9 SECTION 3. NORTH LONDON HEAT AND POWER PROJECT 3.1 THE PROJECT
The Project would replace the existing EfW facility at the Edmonton EcoPark, which is expected to cease operations in around 2025, with a new and more efficient ERF which would produce energy from waste, and associated development, including temporary works required to facilitate construction, STACK demolition and commissioning. The proposed ERF would surpass the requirement under the Waste Framework Directive (Directive 2008/98/EC) to achieve an efficiency rating in excess PROCESS LINES of the prescribed level, and would therefore be classified as a FLUE GAS TREATMENT PLANT FURNACE / GRATE / BOILER recovery operation rather than disposal. Figure 3.1 shows an OVERHEAD CRANES illustrative schematic of the ERF process. The components and operational requirements of the proposed ERF are described in TIPPING HALL Section 3.2. Turbine + Generator The DCO is being sought for the works set out in the Book of WASTE Plans (AD02.01). IN
WASTE BUNKER
COOLING CONDENSERS
INCINERATOR BOTTOM ASH (IBA)
HEAT POWER
Figure 3.1: ERF schematic
10 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW 3.2 PRINCIPAL DEVELOPMENT
The principal development comprises the construction of an Design of the tipping hall would control odour, for example by the furnace through the feed chutes. The feed chutes would be ERF located at the Edmonton EcoPark, fuelled by residual fast acting roller shutters at the tipping hall entrance and exit hydraulically operated and feed fuel onto the grates in an even waste and capable of an electrical output of around 70MWe doors, shutter doors on the tipping bays from the tipping hall layer and control the amount of waste supplied to the grate. (gross) of electricity. The principal development consists of the to the bunker, and managed ventilation within the tipping hall following development, located within the limits of deviation to provide air intake through louvre openings and exhaust air The moving grates would transport fuel supplied from the feed shown on Drawing C_0002 and within the building envelopes flowing into the bunker. hoppers at one end to the bottom ash extraction system at the shown on Drawing C_0003 (in the Book of Plans (AD02.01)): other end, ensuring that the fuel is thoroughly mixed and burnt i) a main building housing: Bunker and cranes out while it travels along the length of the grates. The grates a. a tipping hall; The waste storage bunker serves a number of purposes as would be capable of treating fuel with varying calorific value, follows: meeting combustion requirements and producing the required b. waste bunker and waste handling equipment; a. receive waste and enable effective mixing of wastes (by bottom ash quality. Grate designs would be such that the c. two process lines (with each line having a capacity of overhead cranes) to create a homogeneous fuel that accumulation of unburned material under the grate is prevented. 350,000 tonnes of residual waste per annum), consisting facilitates stable operations and optimisation of plant of a moving grate, furnace, boiler and a flue gas performance; Incinerator Bottom Ash (IBA) resulting from waste combustion treatment plant; b. maintain sufficient fuel in the bunker for continuous plant would be discharged from the end of the grate to a water bath. d. facilities for the recovery of incinerator bottom ash and air operations; and The IBA would then be transported to a designated area by a pollution control residue; slag pusher and a conveyor belt. c. enable continued waste reception in the event of plant e. steam turbine(s) for electricity generation including shutdown, both planned and unplanned. equipment for heat off-take; and IBA would be transported to an off-site treatment area for metal recovery and processing into construction aggregates. f. control room containing the operational and The hydraulic volume of the bunker would be of sufficient environmental control and monitoring systems, and capacity to hold a minimum of five days of processing capacity offices; A second waste combustion residue would be the finer ash with the plant operating at full capacity. This provides the in the combustion gases that would be collected in the boiler, ii) entry and exit ramps to the ERF; Applicant with sufficient space to adequately mix the waste and is thus known as boiler ash. Boiler ash is mixed with iii) a stack containing flues for flue gas exhaust; as well as providing a greater buffer/capacity to manage both either bottom ash or the air pollution control (APC) residue iv) cooling equipment; and waste deliveries and plant shutdown related disruptions. from the Flue Gas Treatment (FGT) process which would then v) an observation platform enclosure. be transported off-site for suitable management by a licensed Two overhead grab cranes would be used to feed waste from competent contractor. the bunker into the feed hoppers. Each crane would have one Further details of the core components follow. grabber and would be able to: a. pick up material in the refuse bunker and transfer it into the Tipping hall The tipping hall is the starting point for the process where boiler feed hoppers; the waste (now regarded as fuel) would be delivered to the b. stack the mixed waste within the bunker for feedstock proposed ERF and emptied into the storage bunker. management; c. keep the tipping areas clear of waste to enable continuous Refuse collection vehicles (RCVs) would enter the proposed reception of waste; and ERF along an access ramp to bring the RCVs to the elevated d. regularly move/turn the waste to avoid decomposition and tipping hall where the waste is delivered into the waste compaction. bunker. One way traffic flow is maintained within the tipping Grate and boiler hall with vehicles exiting via the down ramp to rejoin the Fuel would be deposited into the feed hoppers by the grab internal circulation route. Access to and from the ramps would cranes. From there, fuel would be guided from the hopper into be controlled and queuing on the ramps would be avoided or minimised.
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | 11 SECTION 3. NORTH LONDON HEAT AND POWER PROJECT 3.2 PRINCIPAL DEVELOPMENT
Heat and power generation Flue gas treatment and chimney stack Electricity network connection The boilers would be designed as a natural circulation steam Waste combustion results in the production of gases mainly The proposed ERF would export electricity from the steam generator, capturing the heat energy from the combustion consisting of water vapour, carbon dioxide and excess air. turbine generator through transformers and power lines to the gases through a series of boiler tubes filled with water. This mixture of combustion gases is termed ‘flue gas’ and grid. The transformers would convert the electricity voltage from carries components including acid gases, organic substances, the generator to that required by the grid. The steam turbine and generator set would convert the energy heavy metals and fly ash particles. Although these components within the steam into electrical power and provide a point for the represent a much smaller part than the water, carbon dioxide Upgrade works would be required to the electricity connection extraction of heat for supply to potential future heat or energy or excess air, the ERF would treat flue gases to mitigate the to the National Grid. These works would be pursued separately networks. The turbine would be an extraction condensing type impact of pollutants. by UK Power Network (UKPN) under their statutory powers and turbine, as it combines high efficiency with robustness and a therefore they are not included in the Application Site. compact design. In line with current best practice, there would Flue gas technologies would be employed that offer the be a single common turbine for the two boiler lines. highest degree of air emission abatement in order to minimise ERF offices emissions into the atmosphere which are strictly controlled. This The ERF facility would be operated from a central control room Air or water cooled condensers would comprise either a wet or combined flue gas treatment with a view over the waste storage bunker to monitor and The proposed ERF would be equipped with an Air Cooled solution together with selective catalytic reduction (SCR) control ERF operations. The central control room would be Condenser (ACC). The condenser would be designed for the Nitrogen Oxides (NOx) abatement. located within the ERF offices and would also have live views following modes of operation: from a suite of cameras feeding pictures from across the ERF. a. steam turbine operation (with varying ambient temperatures); Both wet and combined FGT plants achieve the same emission b. bypass operation; and limit values which are far below emission limits required by the The ERF offices would also provide office and support facilities European Union (EU) Industrial Emissions Directive (IED). for ERF staff and Edmonton EcoPark administration. c. combined steam turbine and bypass mode. Treated flue gas would be discharged to the atmosphere via a Visitor facilities With an ACC the low pressure exhaust steam from the turbine 100-105m (above ground level) tall stack made of two separate A route through the ERF would be made available for the would pass through a large duct to rows of condenser units flues. general public and children/adults from schools, other cooled by air, forced through heating surfaces by large fans. educational establishments and/or organisations. The route The condensate would be collected in a tank and pumped Plume visibility from the proposed ERF stack depends on would afford views towards the plant, bunker and tipping hall back to the turbine building. This condensing method only has ambient meteorological conditions, i.e. air temperature and and access to the control room. minor water requirements as there are no evaporative losses. humidity, and flue gas humidity and temperature at stack outlet. Therefore, wastewater disposal requirements would be limited A visible plume is formed when the temperature of the ambient to that needed for cleaning of heating surfaces. An ACC system air mixed with the cleaned flue gas is lower than the saturation produces no visible plume. This is because an ACC system is temperature of the water vapour emitted with flue gas. The an enclosed system and therefore no moisture is lost to the proposed ERF is likely to generate a visible plume for some surrounding atmosphere. periods of the year.
12 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW 3.3 ASSOCIATED DEVELOPMENT
The following elements are proposed as associated WORKS NO.4 – UTILITIES AND INFRASTRUCTURE WORK, xii) the resurfacing of Ardra Road (if required); development: LANDSCAPING, ACCESS, SECURITY AND LIGHTING, AND xiii) security, fencing, and lighting works and equipment;
WEIGHBRIDGES: xiv) the erection of security facilities and equipment and WORKS NO.1B – WORKS REQUIRED TO PROVIDE i) With regard to the following gatehouses within the operational site at access points from BUILDINGS, STRUCTURES, PLANT AND EQUIPMENT a. potable water; Advent Way, Ardra Road, and Lee Park Way; NEEDED FOR THE OPERATION OF THE ERF: b. wastewater; xv) the upgrade and maintenance of the existing bridge over the i) a wastewater treatment facility; c. surface water; River Lee Navigation; and ii) a water pre-treatment plant; d. foul water; xvi) the installation of photovoltaic panels at roof level of the iii) external stores and workshops; e. raw water; ERF and the RRF. iv) a fuelling area and fuel storage, vehicle wash, transport f. electricity; offices and staff facilities, toilets, natural gas intake and WORKS NO.5 – WORKS FOR THE CREATION OF THE management compound, and fire control water tank(s); and g. gas; and TEMPORARY LAYDOWN AREA AND ITS TEMPORARY USE: v) electrical substation(s). h. CCTV, telecoms and data. i) areas of hardstanding; works could include ii) the erection of fencing, hoarding or any other means of WORKS NO.2 – THE CONSTRUCTION OF A RRF • the diversion, repositioning, decommissioning, removal, enclosure; COMPRISING THE FOLLOWING BUILDING, STRUCTURES replacement, modification or upgrading existing pipes, iii) the erection of security facilities and equipment and AND PLANT: cables, systems and associated apparatus; gatehouses; i) a recycling and fuel preparation facility; • the laying or installation of new pipes, cables, systems iv) vehicle parking; ii) a reuse and recycling centre; and associated apparatus; and v) office and staff welfare accommodation; iii) offices and staff and visitor welfare facilities; • the creation of connections to existing or new pipes, vi) storage, fabrication, laydown area; iv) odour abatement and dust suppression plant and equipment; cables, systems and associated apparatus. vii) foul water storage and pumps and surface water attenuation and ii) the erection of a raw water pumping station; storage and pumps; v) fire control water tank(s), pump house and equipment. iii) stabilisation works to the eastern bank of Salmon’s Brook; viii) utility works including electricity, water, CCTV, telecoms and iv) the construction of surface water pumps, pipework and data; WORKS NO.3 – THE CONSTRUCTION OF A BUILDING attenuation tanks; TO PROVIDE VISITOR, COMMUNITY AND EDUCATION ix) the creation of vehicular, cycle and pedestrian access from v) landscaping works; Lee Park Way to the Temporary Laydown Area; and FACILITIES, OFFICE ACCOMMODATION, AND A BOAT vi) the installation of areas of green roof and/or brown roof; CANOPY. x) restoration of the Temporary Laydown Area. vii) the widening of the existing entrance into the Edmonton EcoPark from Advent Way, including modification or WORKS NO.6 – SITE PREPARATION AND DEMOLITION replacement of the bridge over Enfield Ditch; WORKS: viii) construction within the Edmonton EcoPark of vehicle and i) demolition of existing buildings, structures and plant cycle parking, vehicle, cycle and pedestrian routes, and excluding demolition of the EfW facility; weighbridges; ii) construction of a temporary ash storage building; ix) construction of an access into the Edmonton EcoPark from iii) realignment of the exit ramp from the existing EfW Lee Park Way, including bridging over Enfield Ditch; facility; x) improvements to Lee Park Way including vehicle barriers iv) works to prepare the land for the construction of works and the creation of segregated pedestrian and cycle paths; numbers 1a, 1b, 2, 3, 4 and 5. xi) improvements to Deephams Farm Road and use of Deephams Farm Road as an access to the Edmonton EcoPark;
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | 13 SECTION 3. NORTH LONDON HEAT AND POWER PROJECT 3.3 ASSOCIATED DEVELOPMENT
WORKS NO.7 – DECOMMISSIONING AND DEMOLITION OF RESOURCE RECOVERY FACILITY Recycling/Fuel Preparation Facility: THE EXISTING EFW FACILITY AND REMOVAL OF: For waste not delivered direct to the ERF, the RRF would The RFPF would consist of a reception hall; sorting/preparation i) the existing stack; receive and sort a variety of wastes to recover items for reuse, areas and storage areas. ii) demolition of the existing water pumping station on Ardra recycling or further processing thereby maximising diversion Road; and from landfill. Equipment would be used to remove some Discrete areas for different material streams and sources would recyclables from the waste (e.g. metals) and the remaining be provided, for example, trade waste, RRC waste, bulky waste, iii) making good the cleared areas. waste suitable for thermal treatment would be transported to green waste etc. The RRF would use movable push walls for the ERF for energy recovery. Collected food and garden wastes long term design flexibility. The draft DCO also identifies such other works as may be would also be received and bulked for transport to composting necessary or expedient for the purposes of or in connection with facilities (off-site). Bulky waste containing materials suitable for recycling would be the construction, operation and maintenance of the authorised delivered to the RFPF where it would be sorted and stockpiled. development which do not give rise to any materially new or The facility would have capacity to manage around 386,200 The RFPF would include a series of bays that would be materially different environmental effects from those assessed tonnes of waste annually. suitable for tipping, storage, and loading of pre-sorted waste, and set out in the Environmental Statement (ES) (AD06.02). with appropriate access for loading shovels and other required The RRF would encompass the following areas: vehicles for the collection of waste with: a. recyclable waste being transferred to a reprocessing facility; a. Recycling/Fuel Preparation Facility (RFPF); and b. Reuse and Recycling Centre (RRC) for public use; b. waste unsuitable for combustion being transported to a c. staff facilities; and landfill for disposal. d. associated odour abatement and dust suppression plant, a fire water tank and pump house. Waste that is suitable for combustion after pre-treatment would be deposited in the fuel preparation area for sorting and size reduction. After shredding, waste suitable for the ERF would be moved to the waste bunker.
The fuel preparation area would handle and shred waste, creating the potential for dust and odour. Food and gully wastes may be particular sources of odour. Control systems would RFPF Authorised waste RRC include a combination of: Odour control + dust suppression a. dust suppression misting system; b. de-duster unit (e.g. external tower system); and c. odour control such as carbon filters. Storage Sorting + preparation Reception Tipping apron Authorised waste
Drop-off ENERGY RECOVERY
RECYCLING RECYCLING
Figure 3.2: RRF schematic
14 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW Reuse and Recycling Centre ECOPARK HOUSE The RRC would receive waste from the general public and EcoPark House would be a two storey building used to small traders. The RRC has been sized to handle approximately accommodate the requirements of non-operational staff, visitors 8,000 tonnes of waste per year. and the Edmonton Sea Cadets. The building would provide for visitor, community and education facilities, space for offices, and The RCC would comprise a main reception area with sufficient a base for the Edmonton Sea Cadets including a launch into the space for the safe circulation of vehicles and pedestrians, River Lee Navigation. Each component of EcoPark House is as parking areas. A separate access route and entry would be follows (and shown in Figure 3.3): created for the RRC. Visitor, community and education facilities The public area would be elevated above the operational EcoPark House would offer an opportunity to provide a learning area and users would deposit waste through the chutes into programme related to the issues of waste and its impact on the containers or bays at the base of the chutes. The containers environment. The facility would feature a dedicated lecture room would be arranged in such a way to permit the removal and and exhibition space to be used for hosting tours and making transport of containers without impacting on the public’s ability presentations on sustainable waste management and energy to use the RRC area. generation.
A roll on-roll off (RoRo) container lorry or front end loader would Edmonton Sea Cadets remove the containers/empty the bays as necessary. Material The Edmonton Sea Cadets are part of the national Sea Cadets would be deposited in an appropriate bay in the storage area organisation. This is a non-service organisation with charitable Site tour of the RRF. RRC users and members of the public would be status which works in partnership with the Royal Navy. Entrance isolated from container handling operations. ERF The Edmonton Sea Cadets’ existing facility is located within the Staff facilities Edmonton EcoPark at the Sea Cadets facility T.S. Plymouth Offices and welfare areas for administration and operational and is accessed through the Application Site. T.S. Plymouth RRF staff would be provided within the new facility. Staff facilities is a single storey shed currently located in the east of the would have views into both the public and operational areas for Application Site adjacent to the River Lee Navigation. ease of management and control. Within EcoPark House a new facility would be provided for the Edmonton Sea Cadets with continued access to the wharf area (as they currently have). Facilities for the Edmonton Sea Cadets would include a drill hall shared with other community users, VISITORS CENTRE classrooms, offices, wardroom (staff room), toilets, showers, + SEA CADETS changing rooms, yard storage for canoes, toppers and dinghies (secure) and boatshed on the ground floor.
Boat canopy Provision is made for construction of a boat canopy to service Figure 3.3: EcoPark House schematic the requirements of the Edmonton Sea Cadets.
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | 15 SECTION 3. NORTH LONDON HEAT AND POWER PROJECT 3.3 ASSOCIATED DEVELOPMENT
OTHER:
EfW facility decommissioning and demolition c. installation of two cycle shelters to provided secure, covered c. associated works/improvements to Lee Park Way The ERF would replace the existing EfW facility and the parking for staff and visitors; and incorporating: road and drainage improvements, signage, Applicant is committed to removing the existing facility once the d. pedestrian routes across the Edmonton EcoPark for visitors lighting and CCTV, and the installation of new barriers; ERF is operational. Since the decommissioning and demolition and employees, with the potential for a covered walkway. d. improvements to Deephams Farm Road to create the new of the EfW facility require consent they have been included in Deephams Farm Road access into the Edmonton EcoPark, the Application. Artificial lighting, site security and means of enclosure comprising: road and drainage improvements, lighting and works CCTV, and installation of a new barriers at the northern end Utility works a. erection of gatehouses at each Edmonton EcoPark of Deephams Farm Road. This new Deephams Farm Road The following utility works are proposed: entrance. The primary gatehouse would be located at the access would be used by some operational waste vehicles a. diversion of the Chingford and Angel sewers to move the main site entrance (Advent Way). The other gatehouses transporting waste to and from the existing EfW facility and sewer junction point further north; would be located at the Lee Park Way and Deephams Farm proposed ERF and RRF and during construction; and b. connection to the main sewer; Road access to the Edmonton EcoPark; e. possible resurfacing to roads within the Application Site to c. new gas supply and gas compound; b. installation of a site perimeter fence along the northern, ensure that they are suitable for the proposed use. d. new raw water intake from Deephams Sewage Treatment eastern and southern boundaries of the Edmonton EcoPark; Works outfall; c. installation of a fence within the Edmonton EcoPark to Creation of a Temporary Laydown Area separate the public and operational site areas; and A Temporary Laydown Area would be required due to the e. upgrade of the electricity connection to the National Grid; constrained space on the Edmonton EcoPark for construction f. minor internal site utility works; and d. installation of artificial lighting and CCTV associated with and the need to maintain continuous operation of waste g. construction of surface water pumps, pipework and water the Project. Lighting would also be provided for the new Lee management during development. attenuation tanks to provide storage on site. Park Way access for vehicular, pedestrian and cycle paths along new route (from Advent Way to the Lee Park Way The Temporary Laydown Area would comprise parking spaces; access), and for operational vehicles entering from the new Landscape works temporary accommodation (offices, staff welfare facilities), Permanent hard and soft landscaping, including utilisation of Deephams Farm Road access. storage/laydown, creation of vehicular, cycle and pedestrian areas of cut and fill to create new landform, marginal planting access from Lee Park Way, and temporary flood water along Enfield Ditch, native and ornamental tree planting and Site access and street works attenuation storage. shrub planting. a. widening of the existing access point from Advent Way. This access would continue to be used by the majority of Works to restore the current landscaping in the area used operational waste vehicles transporting waste to and from Circulation and parking works within the Edmonton for the Temporary Laydown Area, including removal of the the Edmonton EcoPark; EcoPark temporary vehicular, cycle and pedestrian access into the a. construction within the Edmonton EcoPark of new internal b. creation of a new Lee Park Way access including a new Temporary Laydown Area from Lee Park Way. circulation routes, incorporating new weighbridges; bridge over Enfield Ditch. This access would be used during construction for construction staff to access the Edmonton b. layout of up to 132 new car parking spaces (including up to EcoPark and during operation by staff and members of the 20 accessible/enlarged accessible spaces, up to 26 spaces public visiting the Edmonton EcoPark; with charging for electric vehicles and up to 13 spaces with potential for charging of electric vehicles); up to 3 coach parking spaces, up to 6 motorcycle spaces and up to 26 bicycle spaces;
16 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW SECTION 4. SITE AND CONTEXT
4.1 INTRODUCTION 4.2 APPLICATION SITE 4.3 SURROUNDING AREA 4.4 HISTORIC CONTEXT 4.5 SOCIO-ECONOMIC CONTEXT 4.6 TOPOGRAPHY AND GEOLOGY 4.7 WATERCOURSES AND DRAINAGE 4.8 LANDSCAPE FEATURES AND ECOLOGY 4.9 TRANSPORT AND ACCESS 4.10 VISUAL CONTEXT SECTION 4. SITE AND CONTEXT 4.1 INTRODUCTION
N NPS EN-1 recognises the importance of high quality and inclusive design for energy projects that is sensitive to place, and which delivers functionality (fitness for purpose and sustainability) as well as aesthetics (contribution to the quality of the area in which it would be located).
The development of the Project design was based on an understanding of the existing local character and circumstances. This section describes the principal features and characteristics of the existing Edmonton EcoPark and its context that have informed the definition of drivers that the design has responded to.
4.2 APPLICATION SITE The Application Site, as shown on the Appplication Site ENFIELD DITCH Location Plan- North London Context (A_0001) and Application Site Location Plan - Local Context (A_0002) in the Book of Plans (AD02.01), extends to approximately 22 hectares and is located wholly within LB Enfield. The Application Site comprises the existing waste management site known as the Edmonton EcoPark where the permanent facilities would be located, part of Ardra Road, land around the existing water pumping station at Ardra Road, Deephams Farm Road, part of Lee Park Way and land to the west of the River Lee Navigation, and land to the north of Advent Way and east of the River Lee Navigation (part of which would form the Temporary Laydown Area and new Lee Park Way access road). The post code for the Edmonton EcoPark site is N18 3AG and the grid reference is TQ 35750 92860.
The Application Site includes all land required to deliver the Project. This includes land that would be required temporarily to facilitate the development.
Figure 4.1: Application Site
18 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW Edmonton EcoPark
The Edmonton EcoPark is an existing waste management complex of around 16 hectares.
Current use of the Edmonton EcoPark comprises: a. an EfW facility which treats circa 540,000 tonnes per annum (tpa) of residual waste and generates around 40MWe (gross) of electricity; a. Energy from Waste (EfW) facility b. an IVC facility which processes food, landscaping and other green waste from kerbside collections and RRCs as well as local parks departments. The facility currently manages around 30,000tpa, and has a permitted capacity of 45,000tpa; c. a Bulky Waste Recycling Facility (BWRF) and Fuel Preparation Plant (FPP) which receive bulky waste from RRCs and direct deliveries. These facilities respectively
recycle wood, metal, plastic, paper, card and construction b d waste; and separate oversized items and shred waste c
suitable for combustion. These integrated facilities manage b. In-Vessel Composting (IVC) over 200,000tpa; d. an IBA Recycling Facility which processes ash from the existing EfW facility; a f e. a fleet management and maintenance facility which provides parking and maintenance facilities for the Edmonton
EcoPark fleet of operational vehicles; f f. associated offices, car parking and plant required to operate the facility; and f g. a former wharf and single storey building utilised by the e g Edmonton Sea Cadets under a lease. c. Fuel Preparation Plant (FPP) In order to construct the proposed ERF, the existing BWRF and FPP activities would be relocated within the Application Site; Figure 4.3: Photos of Edmonton EcoPark N the IVC facility would be decommissioned and the IBA recycling would take place off-site. Edmonton EcoPark Application Site Figure 4.2: Edmonton EcoPark and Application Site
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | 19 SECTION 4. SITE AND CONTEXT 4.3 SURROUNDING AREA
The Application Site is located to the north of the A406 North The LVRP and River Lee Navigation are immediately adjacent Circular Road in an area that is predominantly industrial. The to the eastern boundary of the Edmonton EcoPark, and the Lee Lee Valley Regional Park (LVRP) is located to the east of the Park Way, a private road along which National Cycle Network Edmonton EcoPark and part of the Application Site falls within (NCN) Route 1, runs alongside the River Lee Navigation. The the LVRP. LVRP is located to the east of the River Lee Navigation where the William Girling Reservoir is located along with an area Land to the north and west of the Application Site is currently occupied by Camden Plant Ltd. which is used for the predominantly industrial use. Immediately to the north of the crushing, screening and stockpiling of concrete, soil and other RESIDENTIAL INDUSTRIAL Edmonton EcoPark is an existing Materials Recycling Facility recyclable materials. The nearest residential areas to the east of which is operated by a commercial waste management the Application Site and LVRP are located at Lower Hall Lane, company, alongside other industrial buildings. Further north is approximately 550m from the Edmonton EcoPark and 150m Deephams Sewage Treatment Works. Beyond the industrial from the eastern edge of the Application Site. area to the north-west is a residential area with Badma Close being the nearest street, approximately 600m from The character and mix of uses in the surrounding area and the Edmonton EcoPark and 60m from the nearest part of the planned future developments form the context to which LEE VALLEY Application Site boundary. Residential properties at Zambezie the design should respond in its massing, appearance and REGIONAL PARK Drive are approximately 125m west of the Edmonton EcoPark. materials, accounting for the sensitivity of those different areas.
The Eley Industrial Estate located to the west of the Application RESIDENTIAL Site comprises a mixture of retail units, industrial and warehousing uses.
MIXED USE Advent Way is located to the south of the Application Site (MERIDIAN WATER adjacent to the A406 North Circular Road. Beyond the A406 MASTER PLAN) North Circular Road are retail and trading estates; this area is identified for future redevelopment to provide a housing led mixed use development known as Meridian Water. Meridian Water is proposed to create up to 8,000 new homes and 3,000 new jobs by 2045 in a new sustainable, mixed neighbourhood, which would change the neighbouring uses and character of this area. INDUSTRIAL Watercourses
Industrial
Residential
Green Space
Retail
Business N Meridian Water Masterplan boundary Borough boundary Figure 4.4: Uses surrounding the Application Site
20 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW Edmonton Green Shopping Centre WILLIAM GIRLING RESERVOIR
Badma Close 7 Zambezie Drive
Ardra Road LONDON BOROUGH Deephams OF ENFIELD Farm Road
6
3
N 2 5 Key 8 1 Application Site 4 Lee Park Way 1. Edmonton EcoPark Meridian Way Lower Hall Lane
2. River Lee Navigation 3. Enfield Ditch LONDON BOROUGH 4. Salmon’s Brook 3 OF WALTHAM FOREST
5. Camden Plant Ltd. Advent Way 6. Materials Recovery Facility 7. Deephams Sewage Treatment Works 8. Eley Industrial Estate A406 North Circular
Borough Boundary
BANBURY RESERVOIR LONDON BOROUGH Figure 4.5: Aerial view of surrounding context OF HARINGEY
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | 21 SECTION 4. SITE AND CONTEXT 4.4 HISTORIC CONTEXT
The Lee Valley has a significant industrial heritage, once home to a diverse range of industries, gravel pits, waterworks sites, distilleries and munitions factories. It has also been used as a significant transport corridor as well as providing water supply for London. The industrial activities initially developed in the Lee Valley corridor due to its distance from London, and the general availability of water power.
In the 20th century the combination of transport, wide expanses of flat land and electricity from riverside and canal-side plants ENFIELD led to the expansion of diverse industries, later replaced by warehousing and retail parks.
Today the Lee Valley corridor, shown in Figure 4.6, is characterised by reservoirs, parks, industrial estates and some residential suburbs. The Application Site is part of this industrial and recreational setting. LEE VALLEY CORRIDOR HARINGEY The Application Site is located in the former Edmonton Marsh which formed a band about 800m wide along the River Lee REDBRIDGE WALTHAM Navigation, bordered and crossed by many watercouses. FOREST
The flood prone nature of the area adjacent to the River Lee Navigation resulted in development being slower in this area HACKNEY ISLINGTON than on the drier ground to the west. In the 1870s the area of CAMDEN the Application Site was still open marshland, although the NEWHAM first traces of industrialisation of the landscape were appearing CITY OF with the establishment of the Angel Works of Messrs Ridley, LONDON Whitley and Co and the Tottenham and Edmonton Gas Works approximately 500m to the south of the Application Site. WESTMINSTER
Completion of the A406 North Circular Road in 1927 further SOUTHWARK encouraged industrialisation of the area. By 1938 the N Application Site was surrounded to the west and south by a variety of factories producing furniture, wirelesses, zinc sheets, soda syphons and clothing. Figure 4.6: The Application Site within the Lee Valley corridor
Figure 4.7: Examples of Lee Valley character
22 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW North London Waste Authority North London Heat and Power Project Archaeological Desk-Based Assessment North London Waste Authority North London Heat and Power Project Archaeological Desk-Based Assessment
A sewage works was established in the 1870s at Deephams Farm to the north of the Application Site. The works were expanded to the south in 1927 leading to the construction of filtration beds within 150m of the northern boundary of the Edmonton EcoPark. By 1976 the sewage works had extended further south with the construction of sludge lagoons which overlapped the northern part of the Application Site.
On the Essex side of the River Lee Navigation, the Chingford Pumping Station was built for the East London Waterworks
Company in 1895. In 1904 the Metropolitan Water BoardNorth London Wastetook Authority North London Waste Authority North London Heat and Power Project North London Heat and Power Project Archaeological Desk-Based Assessment Archaeological Desk-Based Assessment over the local water companies, including the new Banbury Reservoir. In 1935 work started on the very large William Girling Reservoir, which was finally completed in 1951. These 1898 1938 reservoirs are now both owned and managed by Thames Water Utilities Ltd (TWUL).
The Lee Valley was identified for its regenerative potential as part of Sir Patrick Abercrombie’s Greater London Plan in 1944. In 1963 the Civic Trust were invited to appraise the potential of the Lee Valley as a leisure and recreational resource and was positive in its report. The Lee Valley Regional Park Authority (LVRPA) was formally constituted on 1 January 1967, following Royal Assent to the Lee Valley Regional Park Bill in December 1966. Plans to transform the Lea riverside into a recreational area led by the LVRPA began in 1967.
The Edmonton EcoPark has been home to a number of waste management facilities for over 50 years and the existing EfW 1966 2010 facility commenced operations in 1971. Figure 4.8: Evolution of Edmonton EcoPark and the surrounding area Issue for Consultation | May 2015 | Arup Issue for Consultation | May 2015 | Arup
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | 23
Issue for Consultation | May 2015 | Arup
Issue for Consultation | May 2015 | Arup Learning more about recycling, waste and recovering heat and power
We are proposing to build a Visitors’ Centre called EcoPark House. From here, we will continue to offer pre-arranged EcoPark tours, including a safe and interesting route around the site and give everyone a chance to see how we will generate heat and power from waste left over after recycling.
We are also proposing to relocate the Sea Cadets into EcoPark House, once the project is built. The Sea Cadets currently meet at the wharf on the River Lee Navigation and use the building there. Further SECTION 4. SITE ANDcommunity CONTEXT use will also be possible. Based in Edmonton since 1942, the Sea Cadets’ purpose is to celebrate Britain’s maritime heritage and contribute to its future development by supporting young people. 4.5 SOCIO-ECONOMIC CONTEXT
The Edmonton EcoPark operates 24 hours a day, seven days a week. There are approximately 193 full-time equivalent (FTE) people employed at the Edmonton EcoPark, approximately 96 of whom are directly relatedQuestion to the operation 9: What ofare the your existing EfW facility. The remaining employeesviews on are our responsible proposals for for other site operations and for the managementa Visitors’ Centre?of LWL and the Edmonton EcoPark as a whole.
In the east of the Edmonton EcoPark, adjacent to the River Lee Navigation is a wharf which is currently leased to the Edmonton Sea Cadets. The wharf is typically used two evenings per week and is currently accessed through the Edmonton EcoPark. Given its watersideYou can location answer adjacent this to question the LVRP, the online or in a Feedback Form. Edmonton Sea Cadets facility is also occasionally utilised by Figure 4.9: Edmonton Sea Cadets other cadet groups from LB Waltham Forest and LB Haringey.
According to the Indices of Multiple Deprivation 2010, the Edmonton Sea Cadets Application Site was in the top 6 per cent most deprived areas in England overall. Unemployment around the Edmonton EcoPark is also high at 7.4 per cent in the 2011 Census, almost double the England average. There were also notable differences in skills levels in the area, with a high proportion of residents holding no qualifications.
The area around the Edmonton EcoPark supported a total of 8,238 workplace based employees in 20138. The industry sector including water supply, sewerage, waste management and remediation activities was a notable employer with 445 employees in the neighbourhood area in 2013, and contributing 1 per cent of employment for residents. This is significantly higher than the London average for this industry sector, Figure 4.10: Images of industrial areas around the Application Site reflecting the nature of industry in the area.
Indicative view of EcoPark House from the River Lee Navigation
Want to know more? These documents on our website will tell you more: 8 Office of National StatisticsDetailed (2013) Business information Register - andThe Employment Waste Challenge; Survey Further reading - North London Joint Waste Strategy; Waste Prevention Plan 2014-16; Interim Combined Heat and Power Strategy.
24 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW For further information, please visit www.northlondonheatandpower.london 25 Figure 4.11: Image of the Edmonton EcoPark from the River Lee Navigation
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | 25 SECTION 4. SITE AND CONTEXT 4.6 TOPOGRAPHY AND GEOLOGY
Topography Geology Set within the Lee Valley, the area around the Application high point at 14.7m above sea level. Low points are located in The geology at the Application Site comprises Made Ground, Site itself is relatively flat with the exception of William Girling the north-west of the Application Site adjacent to the effluent Alluvium, Kempton Park Gravels, London Clay, Lambeth Reservoir and Banbury Reservoir which are enclosed by raised treatment plant. Figure 4.16 illustrates the topography of the Group, Thanet Sand and White Chalk as shown in Figure 4.19. bunds. Around the Application Site the ground level is generally Application Site with 0.5m ground contours. There are aquifers (water bearing rocks and soils) beneath the between 10m and 20m above sea level and remains below 20m Application Site including the Upper Chalk which is a principal for approximately 3km east-west. The topography rises towards The topography of the area therefore provides important context aquifer estimated to be up to 50m thick, and the Alluvium, Chingford and Woodford to the east and towards Southgate and for the scale, massing and landscaping approach for the Kempton Park Gravels, Lambeth Group and Thanet Sand which Wood Green to the west. The level difference is up to 60m to Project. are secondary aquifers, see Figure 4.16. the highest areas. Figure 4.12 shows the wider topography with 5m ground contours. The Application Site is located within an Environment Agency (EA) designated groundwater Source Protection Zone (SPZ) 1 The topography of the Application Site ranges from around 10m and 2 which protects groundwater resources from the Lambeth to 13.5m above ordnance datum (AOD), with some isolated Group, Thanet Sand and Chalk aquifers. There are no licensed areas at higher levels than this. Levels are highest across +12m AOD groundwater abstractions within the existing Edmonton the north-eastern part of the Application Site (18m above sea EcoPark. The SPZs are shown in Figure 4.14. level). Levels fall generally from north towards the south of the Application Site. There is a localised high point in the southern The London Clay provides protection to the underlying aquifers part of the Application Site at the grass landscaped area, where by limiting vertical movement of groundwater. The thickness the earth embankment ranges between 11m and 13m above of London Clay is shown in Figure 4.16. It thins from the north sea level ordnance datum. The Lee Park Way bridge is also a +11.7m AOD to the south of the Edmonton EcoPark and is absent around the existing EfW facility bunker where an excavation was SOUTHGATE undertaken and subsequently backfilled with lower permeability +15m AOD gravelly clay and clayey sand and gravel.
CHINGFORD The geology of the Application Site has informed the layout of
+18m AOD - Top of bank uses to reduce the potential impacts on groundwater resources in designated aquifers (water bearing rocks or soils). +10m AOD PALMERS +13.5m AOD GREEN WALTHAM FOREST +10.5m AOD - River Lee Navigation towpath
+14.7m AOD - Lee Park Way bridge +11m AOD
+10m +15m +20m +25m +30m +35m +40m +45m +50m +55m +60m +11m AOD - Advent Way entrance N Level (m) Above Ordnance Datum Figure 4.12: Illustrative wider topography Figure 4.13: Illustrative topography
26 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW A ! A ! Key Lambeth Group London Clay Kempton ParkGravel Made Ground Assumed strata boundary Alluvium Key Figure 4.16:Sitesectionshowingtopographical strata -16 -14 -12 -10 mAOD Site Boundary 16 18 SECTION B-B’ 10 12 14 20
-16 -14 -12 -10 mAOD West -8 -6 -4 -2 A 10 14 16 18 20 12 0 4 6 8 2 South SiteBoundary SECTION A-A’ -8 -6 -4 -2 0 6 8 2 4 South West 0 Lambeth Group London Clay Kempton ParkGravel Made Ground 0 Assumed strataboundary Alluvium B BH302
BH123
BH124 100 100
BH122 BH204 Section B-B'
metres BH121 0 m BH308 200 10 xverticalexaggeration 200 Scale 1:2500@A3
BH305 BH311 BH118 BH312 Section A-A' 300 150 m 300 0 m East East Figure 9 Hydrogeological Risk Client Cross section B-B' Assessment
BH202 B'
file: R:\Projects\35180 NLWA SUBFILE\35180 - 16 Edmonton HYDRA\Calcs\ArcGIS\35180-Rea27.mxdMay 2015 10 xverticalexaggeration Scale 1:2500@A3
file: R:\Projects\35180 NLWA SUBFILE\35180 - 16 Edmonton HYDRA\Calcs\ArcGIS\35180-Rea27.mxd 192200 Key 192400 192600 192800 193000 Key 400 BH115 BH203 192200 192400 192600 192800 193000 35180-Rea31.dwg lowec 35180-Rea31.dwg Key A ! A Lambeth Group London Clay Kempton ParkGravel Made Ground ! Assumed strataboundary Alluvium 150 m
BH116 North SiteBoundary Hydrogeological Risk Figure 8 Client Cross sectionB-B' Thickness of London Clay (m) Clay London of Thickness boundary site Operational Geological Cross Sections Cross Geological Assessment on this figure) on this (Note: Only boreholes used to used boreholes Only (Note: Borehole Investigation Site generate contours are shown shown are contours generate 535400 Thickness of London Clay (m) Clay London of Thickness boundary site Operational Geological Cross Sections Cross Geological on this figure) on this (Note: Only boreholes used to used boreholes Only (Note: Borehole Investigation Site generate contours are shown shown are contours generate 535400 500 May 2015
BH313 35180-Rea30.dwg lowec 35180-Rea30.dwg Site Boundary 600 BH202 North A'
-16 -14 -12 -10 mAOD 10 14 16 18 20 12 -8 -6 -4 B -2 0 6 8 2 4 West 0 B EcoPark Figure 4.15:Planshowingthicknessof London ClayatEdmonton BH302 PLAN A ! 535600 A ! BH301 BH302 bunker andturbinehall EfW facilitywaste existing Approximate A ! A A ! ! 535600 BH201 A ! BH103 BH301 0 BH302 A ! A ! BH303 A ! A ! 25 BH201 BH103 BH309 Scale at 1:3,000 at A4: Scale positionof 50 100 A 0 ! A ! A BH110 ! A ! BH303 A BH310 ! 25 BH123 A ! BH309 BH308 100 Scale at 1:3,000 at A4: Scale 50 A Section B-B' ! metres A ! 0 m A A BH308 A ! ! A BH110 BH124 ! A ! BH204 BH304 535800 BH310 150 BH123 A ! Metres A ! A A ! ! BH308 100 BH305 BH118 BH311 A ! 10 xverticalexaggeration 200 A BH312 ! A ! A ! Scale 1:2500@A3 A A ! A BH402 ! ! BH306 BH401 BH124 A ! BH204 BH304 A ! 535800 Client Assessment section location section Thickness of London Clay and geological cross cross geological and Clay London of Thickness 5 Figure Risk Hydrogeological BH203 BH305 150 A ! BH313 A ! Metres BH311 A ! BH307 A BH116 A ! !
BH305 BH312 BH118 BH311 A ! May 2015 May A BH312 ! A ! A BH402 ! BH306 BH401 A ! A ! 150 m Client Assessment section location section Thickness of London Clay and geological cross cross geological and Clay London of Thickness 5 Figure Risk Hydrogeological BH203 300 A ! 536000 NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT ANDPOWER PROJECT | BH313 A ! BH307 BH116 East B’ Figure 9 Hydrogeological Risk Client Cross sectionB-B' Assessment
BH202 B' May 2015 May May 2015 Thickness of London Clay (m) Clay London of A’ 35180-Rea27.mxd barkr 35180-Rea27.mxd 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 536000 35180-Rea31.dwg lowec 35180-Rea31.dwg 536200 c. b. a. design developmentinclude: in be considered that should sources contaminant Potential from neighbouringsitesduetoitsproximitysurfaceactivities. affected by contamination from the existing site operations and tohavebeen in theKemptonParkGravelsismostlikely is usednearbyforpotablewatersupply. Groundwater quality (Thanet SandsandChalk) in the deeperaquifers Groundwater Figure 4.14:ExtractfromEnvironment Agency SourceProtectionZones Thickness of London Clay (m) Clay London of
waste storedinundergroundbunkers. aquifers andhighvulnerabilitytopollution; identified tohavelowerqualitythanthatoftheunderlying water fromtheKemptonParkGravelaquiferthathasbeen to pollution; vulnerability substances andhigh polluting contain potentially leachable concentrationsfromMadeGroundthatcould 35180-Rea27.mxd barkr 35180-Rea27.mxd 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Application Site SOURCE PROTECTIONZONE2 SOURCE PROTECTIONZONE1 536200 N 27 SECTION 4. SITE AND CONTEXT 4.7 WATERCOURSES AND DRAINAGE Detailed FRA centred on NGR 535900 192900 created 21/10/2014 - Ref:HNL43967MF
el
Saddlers Mill Stream The flood plain is an important consideration in terms of potential need for compensation areas and the layout of Eastern Flood Chann Environment Agency different uses on the Application Site. 2 Bishops Square Business Park St Albans Road West The Application Site is partly located within Flood Zone 2 Hatfield Hertfordshire Intercepting Drain - which has medium risk of flooding. In the east of the Edmonton AL10 9EX EcoPark at the wharf adjacent to the River Lee Navigation is an Lee New Cut area of land in Flood Zone 3, which is at high risk of flooding, 0 170 340 680 see Figure 4.17. Detailed FRA centred on NGR 535900 192900 created 21/10/2014 - Ref:HNL43967MF Metres The Application Site is within the maximum flood extent Legend associated with the failure of reservoirs provided by the EA. The reservoirs are subject to a stringent maintenance and Main Rivers Lee New Cut Saddlers Mill Stream inspection regime. Within the LVRP and approximately 300m north-east of the Application Site boundary, is the William Girling Lee New Cut Reservoir, and beyond this the King George’s Reservoir, are known collectively as the Chingford Reservoirs whichEastern Flood Channel are each Environment Agency Flood Map for Planning
2 Bishops Square Business Park Intercepting Drain Lee New Cut Lee New Cut designated as a Site of Special Scientific Interest (SSSI). The St Albans Road West Salmons Brook Chingford Reservoirs also encompass the Banbury Reservoir Hatfield Enfield Ditch Hertfordshire Intercepting Drain - which is located approximately 600m south-east of the Areas Benefiting from Flood Defences [Lee 2014] AL10 9EX Lee Navigation (Lower) Application Site boundary. Lee New Cut Flood Zone 3
Lee New Cut Lee New Cut Flood Zone 2 There are three watercourses that are in or adjacent to the 0 170 340 680
Application Site as shown in Figure 4.18; Salmon’s Brook and Pymmes Brook Flood Map for Planning (assuming no defences) Metres Enfield Ditch which bound the Edmonton EcoPark, and the Flood Zone 3 shows the area that could be affected by flooding: River Lee Navigation. These watercourses and their associated Legend Lee New Cut connections, quality and ecology inform the design in terms - from the sea with a 1 in 200 or greater Main Rivers chance of happening each year of layout, landscaping and ecology and lighting design. The - or from a river with a 1 in 100 or greater Lee New Cut River Lee Navigation and Enfield Ditch form part of the Lee chance of happening each year. Lee New Cut Valley Site of Metropolitan Importance for Nature Conservation Flood Zone 2 shows the extent of an extreme (SMINC). A manmade ornamental pond is also present within flood from rivers or the sea with up to a 1 in the Edmonton EcoPark, towards the north-east corner, in an Flood Map for Planning 1000 chance of occurring each year.
Intercepting Drain Lee New Cut Salmons Brook area of amenity grasslandLee Newwith Cut adjacent plantation woodland. The Chin It is Enfieldisolated Ditch from the Lee Valley SMINC by the River Lee New Cut g Lee Produced by: Navigation. Areas benefitingBenefiting fromfrom floodFlood defences Defences [Lee [Lee 2014] 2014] Partnerships & Strategic Overview, Lee Navigation (Lower) This map is based upon Ordnance Survey Material with the permission of Ordnance Survey on behalf of the controller of Her Majesty's Stationery Office CrownN Copyright. Lee New Cut Flood ZoneUnauthorised 3 reproduction infringes Crown Copyright and may lead to prosecution or civil proceedings. Environment Agency 100024198, 2014 Hertfordshire & North London Flood Zone 2 Lee New Cut Flood Zone 2 Flood Zone 1
Pymmes Brook FigureFlood Map 4.17: for Extract Planning from (assuming EA Flood no Zonesdefences) map
Flood Zone 3 shows the area that could be affected by flooding: Lee New Cut - from the sea with a 1 in 200 or greater 28 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW chance of happening each year - or from a river with a 1 in 100 or greater chance of happening each year.
Flood Zone 2 shows the extent of an extreme flood from rivers or the sea with up to a 1 in 1000 chance of occurring each year.
The Ching
Lee New Cut Produced by: Partnerships & Strategic Overview, This map is based upon Ordnance Survey Material with the permission of Ordnance Survey on behalf of the controller of Her Majesty's Stationery Office Crown Copyright. Unauthorised reproduction inf ringes Crown Copyright and may lead to prosecution or civil proceedings. Environment Agency 100024198, 2014 Hertfordshire & North London Salmon’s Brook (Figure 4.19) runs southwards along the western boundary of the Edmonton EcoPark. It is part of the River Lee (Lea) catchment which is a tributary of the Thames. Salmon’s Brook has steep banks and is identified as a heavily modified water body with limited ecological value. The running Deephams Sewage water has been found to contain limited notable species. It also Treatment Works outflow channel has poor biological quality. William Girling Reservoir
Enfield Ditch (Figure 4.20) is adjacent to the River Lee Navigation and runs along the east and south edge of the Edmonton EcoPark and is bridged at the existing main entrance to the Edmonton EcoPark to the south, before discharging into Salmon’s Brook. Enfield Ditch supports standing water in places, but tends to dry out during periods of low rainfall. It has limited ecological value. The watercourse is partly culverted Figure 4.19: Salmon’s Brook, along the western edge of the Application Site River Lee Navigation both inside and outside the Application Site. There is a bridge from the existing Edmonton EcoPark over Enfield Ditch to the Edmonton Sea Cadets facility which is the wharf. Enfield Ditch is fenced off preventing access to it from the Edmonton Salmon’s Brook EcoPark along the eastern boundary of the Application Site. River Lee
Edmonton EcoPark abstracts water from Deephams Sewage Enfield Ditch Treatment Works outflow channel (therefore not requiring a licence) upstream of the confluence with Salmon’s Brook. There are no surface water abstractions within the Application Site.
Foul drainage from the Application Site (including process effluent from the existing EfW facility and surface water and domestic flows) is discharged to the Chingford Sewer. There are two surface water outfalls in the north of the Application Site, to Enfield Ditch and Salmon’s Brook, which formerly formed part of the surface water drainage system, but are now sealed Figure 4.20: Enfield Ditch, along the southern edge of the Application Site off. There is also an operational outfall from the Application Salmon’s Brook Site that collects rainwater runoff from building roofs, roads and car parks and discharges to Enfield Ditch on the eastern boundary of the Application Site. Rainfall falling onto natural landscaped areas at the Application Site infiltrates to ground. The topography of the area suggests that surface runoff flows Pymmes Brook to the lowest part of the Application Site in the centre and then N east or west towards Enfield Ditch or Salmon’s Brook. Figure 4.18: Watercourses within or adjacent to the Application Site
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | 29 SECTION 4. SITE AND CONTEXT 4.8 LANDSCAPE FEATURES AND ECOLOGY
The Application Site is situated in an industrial area alongside The LVRP is a major landscape asset although access is Centred around Lockwood and Maynard Reservoirs, the LVRP. The LVRP is part of London’s Green Infrastructure restricted in places. It has a close relationship with urban approximately 2km downstream of the Application Site, network and forms a strategic north-south corridor along Lee features within and adjacent to the LVRP, such as industrial adjacent to the River Lee Navigation lies the Lee Valley Special Valley following the course of the River Lee. Key landscape buildings and structures as well as overhead power lines Protection Area (SPA) and Ramsar site. Ainslie Wood Local features include King George’s and William Girling reservoirs and masts. The largely green and open LVRP contrasts with Nature Reserve (LNR) is located approximately 1.5km east of with their steep grassed banks, the channel of the River Lee the industrial estates situated along the river valley and the the Application Site. and the separate River Lee Navigation channel as well as residential areas of Edmonton to the west and Chingford to the various other smaller watercourses. Further key features are east. The north eastern part of the existing Edmonton EcoPark the pockets of marshland, grassland and other open spaces and most of the land to the east of the Edmonton EcoPark lie as well as mature willows and poplars, which line the River Lee Along the valley slopes to the east lies the urban edge of within an area designated as a SMINC (Figure 4.26). Within Navigation. The LVRP also contains a number of Public Rights Chingford. Chingford primarily consists of large suburban the Edmonton EcoPark the SMINC is made up of a young of Way (including Lee Park Way) and cycle routes such as NCN residential areas from the inter-war period between World War broadleaved plantation woodland with Enfield Ditch along its Route 1. The area currently occupied by Camden Plant Ltd. I and II. The long and straight planned streets are relatively eastern edge. This densely planted area is made up of species is also located in the LVRP to the south of the William Girling wide and lined with a number of street trees. There are mainly such as alder, birch, field maple, poplar, ash and hawthorn. reservoir which is used for crushing, screening and stockpiling two storey semi-detached and short terrace houses with large This habitat provides a potential foraging and nesting resource of concrete, soil and other recyclable materials (Figure 4.21). front and back gardens. Higher ground, in particular along for birds and a foraging resource for bats and small mammals. the steeper valley slopes such as at Mansfield Park, provides Since planting is dense and only a limited amount of daylight vantage points from which there are long views across the river reaches the ground, the ground flora is generally sparse with valley and towards the Application Site. limited diversity. Within the land to the east of the Edmonton EcoPark the SMINC mainly comprises an area of scrub and Beyond the industrial area to the west lies the mostly residential species-poor grassland. area of Edmonton. This area is situated on flat low lying land. In contrast to the low density character of Chingford the urban The Edmonton EcoPark is dominated by hardstanding and grain of Edmonton is more compact. The residential area mostly buildings with limited landscape and ecological value. The consists of tightly built long two storey terrace houses with existing chimney of the EfW facility is a key landmark feature, comparably shorter front and rear gardens as well as some high which can be seen in long distance views from Chingford, rise buildings. The long, straight and mostly compact streets Edmonton and the LVRP. Existing vegetation is mostly provide less space for street trees and therefore appear to be concentrated around the edges of the Edmonton EcoPark harder landscapes. Due to the enclosed nature of the large with two larger landscaped open spaces; the northern open Figure 4.21: View over Temporary Laydown Area towards Camden Plant Ltd Montagu Cemetery and allotments within this area, they provide space is situated to the east of the existing EfW facility, while little relief from the dense built up area. the southern open space is situated to the south of the current vehicle depot and car park. These two spaces comprise areas Ecological designations are shown in Figure 4.23. In addition of amenity grassland with groups of trees and shrubs. There is to the Chingford Reservoirs SSSI to the north-east of the an ornamental pond and a number of benches, used for staff Application Site (Figures 4.24 and 4.25), Walthamstow breaks within the northern open space. The pond contains Reservoirs SSSI is located approximately 1.3km to the south of ornamental fish with little aquatic or marginal vegetation. the Application Site boundary and comprises ten relatively small and shallow water storage basins. The reservoirs provide major The western boundary of the Application Site is formed by wintering ground for wildfowl and wetland birds. The reservoirs the grassed banks along Salmon’s Brook. Situated within the are contained by high grassed banks, which create key features closely mown strip of grass are a few tree groups. There is a in the landscape. row of mature willows along the Salmon’s Brook adjacent to Figure 4.22: Green spaces in the Edmonton EcoPark Deepham’s Farm Road.
30 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW Chingford Reservoirs (SSSI)
Figure 4.24: Chingford Reservoirs SSSI
Application Site Site of Metropolitan Importance for Nature Conservation (SMINC)
Ainslie Wood Local Nature Reserve (LNR) Figure 4.25: Chingford Reservoirs grassed banks
Ramsar Site Lee Valley Special Protection Area (SPA) Walthamstow Reservoirs (SSSI)
Site of Metropolitan Importance for N Figure 4.26: View of part of the SMINC from Lee Park Way Figure 4.23: Ecological designations Nature Conservation (SMINC) Ramsar Site
Site of Special Scientific Interest Local Nature Reserve (LNR) (SSSI)
Special Protection Area (SPA)
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | 31 SECTION 4. SITE AND CONTEXT 4.8 LANDSCAPE FEATURES AND ECOLOGY
Application Site The southern boundary of the Application Site adjacent to the A406 North Circular Road comprises an area of overgrown scrubs, amenity grass with some groups of trees along Enfield Ditch.
The northern boundary of the Application Site is defined by a Ardra Road thin but dense buffer of deciduous trees and scrub, primarily consisting of hawthorn, blackthorn, elder and bramble. Figure 4.27: Eastern boundary at south of Edmonton EcoPark (1) The eastern edge of the Application Site is most sensitive from a landscape and visual amenity perspective as the Edmonton EcoPark is visible from foot an cycle paths as well as the River Lee Navigation. This makes the eastern edge important regarding the setting and the public facing identity of the Deephams Farm Project. Road
Figure 4.28: Southern boundary at Advent Way (2) The eastern boundary of Edmonton EcoPark, which is defined by the Enfield Ditch, comprises mature and mostly dense vegetation including the young tree plantation in the north Young tree plantation forms east that forms part of the SMINC, a row of tall hybrid poplar part of the SMINC further south as well as scattered scrub and groups of trees such as alder and willow. The trees and shrubs provide a Salmon’s Brook Ornamental pond visual separation from foot and cycle paths and the River Open space to the north of Lee Navigation. The drier sections of Enfield Ditch contain no 3 the Edmonton EcoPark aquatic vegetation. In several places Enfield Ditch is heavily Figure 4.29: Open space within the north of the Edmonton EcoPark (3) Vegetation along eastern shaded and overgrown by bramble and hawthorn scrub. There boundary of the Edmonton are also areas of invasive species on the Application Site, such EcoPark as himalayan balsam, japanese knotweed and giant hogweed. 5
In contrast to the largely built up areas to the west of the River Enfield Ditch Lee Navigation, the land to the east of the Edmonton EcoPark is situated within the LVRP and the Green Belt. The areas within 1 the Application Site in this area consist of the Lee Parkway, 2 its adjoining landscaped areas, the bridge over the River Lee Figure 4.30: Enfield Ditch south of the Edmonton Temporary Laydown Area Navigation, footpaths and cycleways and the rough grassland EcoPark (4) 4 Open space at the south of with patches of scrub proposed to be used as a Temporary the Edmonton EcoPark Laydown Area. This rough grassland is not accessible to the public. The character of the proposed Temporary Laydown Area is heavily influenced by the man-made gravel mounds and activities associated with the Camden Plant Ltd, located N immediately to the north of this area.
Figure 4.31: Salmon’s Brook (5) Figure 4.32: Existing landscape in the Application Site
32 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW Figure 4.33: Image of the Edmonton EcoPark from the River Lee Navigation
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | 33 SECTION 4. SITE AND CONTEXT 4.9 TRANSPORT AND ACCESS
The existing transport and access arrangements for the stops approximately 500m walking distance from the Application Edmonton EcoPark are important considerations for the design Site boundary, with two additional routes (routes 192 and 341) of the Project in terms of layout and access to allow effective available from bus stops on Glover Drive, approximately 800m continued operation as well as opportunities to connect the walking distance from the Application Site. Railway Station wider area for different types of users accessing the Edmonton Primary A-Roads EcoPark. Since existing connectivity by public transport is poor, the majority of staff travel to the Edmonton EcoPark by car. The Non-primary A-Roads Road users Edmonton EcoPark currently has 212 car parking spaces. Within the vicinity of the Application Site, the A406 North Circular Road is a key route and provides the main east to west Chingford connection across north London. Access to the A406 North A1069 Circular Road is provided approximately 350m to the east of A110 the Application Site at the Cooks Ferry Roundabout. Other key road links in the direct vicinity of, or within, the Application Site include the A1055 Meridian Way, Advent Way, Argon Road, Walthamstow Avenue, A1009 Hall Lane, Montagu Road, Eley Road, Nobel Road, Ardra Road, Deephams Farm Road and Edmonton Green Lee Park Way. A10
Daily vehicle movements to and from the existing Edmonton
EcoPark vary depending on the time of day, day of the week A1055 and time of year. Currently all of the waste and other materials entering and leaving the Edmonton EcoPark are delivered A1009 Silver by road. In total about 187,000 vehicles enter the Edmonton Street EcoPark every year. This is about one percent of the total Angel Road annual traffic using the A406 North Circular Road.
A112 Highams The existing access for Edmonton EcoPark is via Advent Way Park at the south of the Edmonton EcoPark. This access is shared A1010 by operational vehicles, staff and visitors. There is also an emergency access route via Deephams Farm Road. White Hart Lane
Public transport users Northumberland The Application Site currently has a Public Transport Park A406 Accessibility Level of 1b, which is rated as ‘very poor’. The closest London Underground station to the Application Site is Tottenham Hale which is approximately 3.7km walking distance A109 to the south of Edmonton EcoPark. National Rail services are available at Angel Road station, located approximately 600m N walking distance to the west of the Application Site boundary. Two London Bus routes (routes 34 and 444) operate from bus Figure 4.34: Transport infrastructure around the Application Site
34 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW Pedestrians Footways, shown on Figure 4.35, are provided along Advent Way, Walthamstow Avenue leading to and from the Application National Cycle Site, connecting Lower Hall Lane to the towpath, alongside the Network (NCN) River Lee Navigation from Russell Road to the towpath, along Route 1 Lee Park Way and the towpath and public transport stops and Off-carriageway stations. However, the pedestrian environment is generally cycle route 1 Footways (the River poor and the quality of the environment is reduced by noise Lee Navigation towpath is recorded associated with high traffic flows on the A406 North Circular NCN Route 1 as a definitive Right Road. The quality of footways and availability of crossing of Way) facilities is mixed. Main access to the A1 Edmonton EcoPark Footpath and Cycle path from Advent Way A pedestrian route is available along the east side of the River along Lee Park Way Lee Navigation which is accessed from Advent Way and runs Emergency access A2 to the Edmonton through part of the Application Site. There is no direct access to EcoPark from A2 Deephams Farm this pedestrian route or the Lee Park Way from the Edmonton Road EcoPark.
Cyclists Footpath alongside the River There are a number of cycle routes in and around the River Lee Lee Navigation from Russell Application Site. The following cycle routes are available: Navigation Road to the towpath a. Lee Park Way which runs between the Edmonton EcoPark Off-carriageway cycle and the River Lee Navigation, connecting with Advent Way route along A1055 Footway and off- Meridian Way carriageway cycle route via a bridge at its southern end, forming part of NCN Route along towpath 1; Off-carriageway cycle b. a north to south route along the eastern side of the River Lee route along Lower Hall Navigation which forms part of NCN Route 1 to the south of Lane connecting to NCN Route 1 the A406 North Circular Road; c. an east to west off-carriageway route along Lower Hall Lane, Footpath connecting connecting with NCN Route 1 at Lee Park Way. This route Lower Hall Lane to the connects to the LVRP to the north; and towpath d. an off-carriageway route in a north to south direction along A1055 Meridian Way both to the north and south of the A406 North Circular Road. Footpath along Walthamstow Avenue A406 North Circular Road A1 Footpath along Advent Way Paths indicated below A406 North Circular Road N
Figure 4.35: Pedestrian and cycle routes around the Application Site
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | 35 SECTION 4. SITE AND CONTEXT 4.10 VISUAL CONTEXT
The design proposals should be informed by the character Visual Character of the views into the Edmonton EcoPark and effects on the The character of the views is informed by: surrounding area. • quality or type of observer (transient, dweller or worker); • predominant use of each area (residential, recreational, This section provides an understanding of how the Application industrial or mixed-use); and Site is perceived by describing the visibility of the existing • distance to the Edmonton EcoPark (short, medium and long Edmonton EcoPark and the character of representative views distance). from the surrounding context. The remainder of this section shows five key existing visual A visual assessment has also been undertaken and is included characters that have been identified: in the ES (AD06.02). The visual assessment describes the likely significant effects on visual receptors surrounding A. long-distance views from residential areas to the east and the Application Site during construction, operation and the west; decommissioning of the existing EfW facility. B. medium-distance views to the north and south from industrial areas; Visibility of the Edmonton EcoPark C. short-distance views from transient observers moving The visibility of the Edmonton EcoPark has informed the through the A406 North Circular Road; development proposals. This can be briefly summarised in the D. short-distance views from transient observers moving along following points: River Lee Navigation towpath to the east; and 1. low level activities and lower structures within the Edmonton E. future views from mixed-use areas to the south (i.e. Meridian EcoPark are generally well screened by the surrounding Water Master Plan). vegetation, woodland or built structures. This includes views from short, medium and long distances; 2. the upper section of tall buildings such as the existing EfW facility, which is approximately 31.5m tall, can be partially seen from short and medium distance views, appearing behind the predominant foreground elements, vegetation to the east and industrial buildings to the west; 3. the tallest structure within the Edmonton EcoPark, the stack, is seen against the sky from views at all distances; and 4. the Edmonton EcoPark and its structures are predominantly exposed from views to the south from elevated vantage points. This includes views from the A406 North Circular Road, from those driving along this road and potentially, views from future developments part of the Meridian Water Master Plan.
36 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW 1. SCREENED LOW-LEVEL ACTIVITIES Vegetation Low-level structures Industrial buildings provide provides well screened screening to the West screening to the East
EAST WEST
Residential area River Lee Navigation Residential area
2. UPPER SECTION OF TALL BUILDINGS Upper section of EfW facility partially screened
EAST WEST
Residential area River Lee Navigation Residential area
3. TALLEST STRUCTURE - STACK Stack visible from views at all distances
EAST WEST
Residential area River Lee Navigation Residential area
4. UNOBSTRUCTED VIEWS FROM A406 NORTH CIRCULAR ROAD AND FUTURE RESIDENTIAL BLOCK
Edmonton EcoPark exposed from elevated views to the south Potential residential block part of Meridian Water Master Plan
SOUTH NORTH
Proposed Meridian Water development A406 North Circular Road
Figure 4.36: Diagrams showing visibility of the Edmonton EcoPark Elements of the Edmonton EcoPark likely to be visible
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | 37 SECTION 4. SITE AND CONTEXT 4.10 VISUAL CONTEXT Views of the Edmonton EcoPark are screened Existing stack visible against the by built developments sky, different character to the foreground
2
1
Figure 4.38: 1 - View from Hampton Road
Figure 4.37: A - Long-distance views from residential areas to Recreational area in the Landscape elements screen Existing stack visible against the the east and west foreground the Edmonton EcoPark sky
Figure 4.39: 2 - View from Menon Drive Play Area
38 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW Industrial structures View dominated by the Edmonton EcoPark Medium distance views normally wider, in the foreground to River Lee Navigation structures at the more open perspectives dominated by the the south background River Lee Navigation 4
3
Figure 4.41: 3 - View from LCN Route 1
Figure 4.40: B. Medium-distance views to the north and south Landscape in the Existing vegetation screens Visible structures of from industrial areas foreground to the lower levels of Edmonton the Edmonton EcoPark north EcoPark peripheral to wider context
Figure 4.42: 4 - View from Picketts Lock
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | 39 SECTION 4. SITE AND CONTEXT 4.10 VISUAL CONTEXT
Dynamic views of the Edmonton Elevated vantage position and Edmonton EcoPark elements seen in relation EcoPark from those travelling along relatively flat topography offers to landscape and industrial settings east and the A406 North Circular Road unobstructed views into the west of the Application Site Edmonton EcoPark
6
5 Figure 4.44: 5 - View from A406 North Circular
Taller elements within the Edmonton EcoPark Vegetation screens lower parts Views dominated by are perceived against the natural setting of of the Edmonton EcoPark landscape setting. the foreground
Figure 4.43: C and D. Short-distance views from transient observers moving through the A406 North Circular Road and River Lee Navigation towpath to the east.
Figure 4.45: 6 - View from Lee Valley Public Right of Way
40 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW Potential public realm part of Meridian Water Existing stack visible in Edmonton EcoPark structures seen against Master Plan proposals the background the urban setting part of Meridian Water Master Plan proposals
6
7 Figure 4.47: 6 - Illustrative view from the south future public space along the River Lee Navigation, with representation of potential future developments
Figure 4.46: E. Future views from mixed-use areas to the south (i.e. Meridian Water Master Plan)
Elevated vantage point provides unobstructed views towards the Edmonton EcoPark
Figure 4.48: 7 - Illustrative view from approximately the eighth storey of a future residential block with representation of potential future developments
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | 41 SECTION 4. SITE AND CONTEXT
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42 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW SECTION 5. DESIGN OBJECTIVES AND PROCESS
5.1 DESIGN PROCESS 5.2 DESIGN DRIVERS SECTION 5. DESIGN OBJECTIVES AND PROPOSALS 5.1 DESIGN PROCESS
The development of proposals has followed an iterative design PROJECT VISION TECHNICAL AND DESIGN DRIVERS DESIGN DEVELOPMENT DESIGN CODE DCO process with extensive design development, consultation and AND ASPIRATION DESIGN STUDIES PRINCIPLES SUBMISSION engagement with a range of stakeholders. The key stages of design development are shown in Figure 5.1, and included: Understanding the Identify design drivers Iterative process of design Illustrative Parameters of Application Site to guide the design of development, refinement proposals how the Design a. understanding the Application Site and wider context and and wider context the development and testing Drivers should be identifying key environmental considerations that inform the and test design applied to specific master planning concept; decisions components or Analysis of the locations within the b. analysis of the functional and operational requirements of functional and design proposal the Project and the elements to be accommodated to inform operational the scale, hierarchy and organisation of those elements; requirements c. understanding the implementation strategy including the optimisation of available space to support the construction, Understanding the implementation operation and decommissioning phases; strategy d. an iterative process of design development, refinement and testing with technical and design advisers and through consultation feedback; and e. developing design principles and strategies for the ERF, Phase One Phase Two RRF, EcoPark House and landscaping and establishing Public consultation Consultation Consultation design code principles to inform detailed design.
The Project has sought to achieve a design response which Input from statutory consultees, public, Project design team and regulatory organisations has been informed by the Applicant and its technical and design advisers as well as feedback from consultation. The development of the design has been an iterative process Figure 5.1: Design process that has also informed and been informed, by assessments prepared in support of the Application.
44 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW 5.2 DESIGN DRIVERS
5.1.3 CONSULTATION
A comprehensive programme of consultation was established assessments that were completed. In relation to design, As described in Section 2, the purpose of the Project is to allow at the Project’s inception, which has been integral to the information was provided on the proposals including the design the Applicant to continue to deliver its waste management design process. Consultation was undertaken in accordance principles and external appearance of the ERF (including the duties and to provide a site that can efficiently create energy - with the requirements of the Planning Act 2008 (as amended), stack and scale of the building), RRF, EcoPark House and heat and power - that can contribute to meeting the demand for which included the consultation of prescribed consultees, local landscaping approach. Information was also provided on sustainable energy generation. authorities, the Greater London Authority (GLA), landowners preliminary environmental impact assessment, transport and and the local community. The consultation process helped to access and timescales for construction and demolition. The analysis of context and functional requirements presented identify sensitive areas, issues and specific feedback that have in Sections 3 and 4, led to the identification of a number of informed the design. Other engagement predominantly took the form of meetings constraints and opportunities. These, in turn, informed the with statutory consultees in the pre-application period. This design drivers which have guided development of the design. The Consultation Report (AD05.01) submitted with the included regular meetings with LB Enfield planning, transport, The design drivers have also served to test design options and Application includes the feedback received during consultation sustainability and urban design officers, LVRPA, the EA and to measure the appropriateness of the design response. in relation to design and landscaping and how the Applicant has Transport for London (TfL), amongst others, during design taken that feedback into account. development. Engagement has particularly informed design The development of the design has also responded to planning development in the following areas: policy including NPS EN-1 and NPS EN-3 which highlight the The pre-application consultation process comprised the importance of functionality, fitness for purpose, sustainability following main stages: a. improving wayfinding and pedestrian and cycle access in the and good aesthetics to develop good design. GLA and vicinity of the Lee Park Way; LB Enfield development plan policies have also informed a. Phase One Consultation, which ran from 28 November 2014 b. improved landscape management in the vicinity of the Lee the design, particularly those relating to design, access, to 27 January 2015, for a period of 61 days; Park Way entrance; sustainability. More information on planning policies is provided in Appendix A of this DAS and in the Planning Statement b. Phase Two Consultation (including Section 48 consultation), c. provision of on-site attenuation of calculated runoff; (AD05.02). which ran from 18 May 2015 to 30 June 2015, for a period of d. provision of flood plain compensation for development of the 44 days; and wharf area, adjacent to the River Lee Navigation; This section sets out the functional, environmental and design c. other engagement that is non-statutory or ‘informal’ e. design of the stack; drivers which the design of the Project responds to. engagement was also undertaken throughout the f. the scale of EcoPark House; preparation of the Application. g. the scale of the observation platform on the roof of the Phase One Consultation gave consultees an early opportunity proposed ERF; and to comment on the initial proposals for the Project. High level h. further consideration of options for the use of colour as part information on the emerging proposals was provided including of the Design Code Principles (AD02.02). site constraints which have informed the proposal, size and shape of the ERF, initial approach to the design of the ERF building and stack, proposed site layout, proposed approach to landscaping and approach to assessing the potential environmental effects.
Phase Two Consultation sought comments on more detailed proposals for the Project which took into account the results of Phase One Consultation and further technical work and
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | 45 SECTION 5. DESIGN OBJECTIVES AND PROPOSALS 5.2 DESIGN DRIVERS FUNCTIONAL DRIVERS ENVIRONMENTAL DRIVERS
1. FUNCTION 2. ACCESS AND CIRCULATION 3. SUSTAINABLE
The Project should function effectively and be fit for purpose, The Project should promote effective access and circulation The Project should be sustainable, that is, to consider the responding to technical and operational requirements as as follows: environmental performance and impact of the components of follows: the Project, their longevity and adaptability to climate change, a. incorporate primary access from Advent Way: the flexibility and efficiency as follows: a. efficient: the layout of the Edmonton EcoPark should Edmonton EcoPark’s existing primary access should be be efficient and give consideration to matters including retained and used for operational traffic; a. sustainable construction: the design should achieve a site access and circulation, utilities, infrastructure and b. resilient access strategy: additional separate access high standard of sustainable design and construction.; buildings, and site maintenance; points should be created for light traffic (staff and visitors) b. apply the energy hierarchy: the Project should apply b. safe: safety should be the overriding priority in the to promote efficient management of the Edmonton the energy hierarchy of lean, clean and green to reduce operation of the Edmonton EcoPark. The Project must EcoPark, and increase resilience; carbon emissions and prioritise energy efficient design adhere to all applicable safety standards and be in c. efficient internal circulation: the layout of the Edmonton measures; accordance with relevant guidance and regulations; EcoPark should enable efficient circulation and separate c. provide heat and electricity: the proposed ERF should c. enable continuity of operations: to reduce disruption operational and public traffic; and be designed to provide electricity to the grid and have the to waste management activities during construction, the d. appropriate internal connections: within the Application potential to deliver heat to a heat network; proposed ERF should be positioned so that the existing Site facilities should be adequately connected with d. apply the waste hierarchy: the design should encourage EfW facility remains in operation during construction and vehicular and pedestrian routes. re-use and recycling of materials, and reducing commissioning of the proposed ERF; construction, demolition and excavation waste. It should d. provide for required support infrastructure: the prioritise materials that have a low embodied energy, are continuous operation of the existing EfW facility requires durable, and can be sustainably sourced; and the continuous availability of support infrastructure e. appropriate environmental performance: in including fuel preparation, bulky waste recycling and developing the components of the Project, environmental vehicle fleet management and maintenance, as well as performance including longevity, adaptability to climate any temporary support facilities during construction; change, flexibility and efficiency should be considered. e. ERF capacity: the proposed ERF should be sized to meet and effectively manage forecast waste needs, accounting for peaks and growth in demand over time. The new facility should therefore accommodate two process lines, each with a capacity of 350,000tpa; f. incorporation of Reuse and Recycling Centre: to promote reuse and recycling to households and small businesses, the Application Site should make allowance for a RRC; and g. allow for future development: Edmonton EcoPark is designated as a strategic site for waste management activities. The design should organise the new facilities so that any future proposals for the site of the existing EfW facility are not unduly constrained.
46 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW DESIGN DRIVERS
4. SITE-SPECIFIC CONSIDERATIONS 5. CONTEXTUAL RESPONSE
The Project should have a considered response to the f. be sensitive to habitats and species: the Project The Project should be based on a thorough understanding environmental and ecological constraints both within and in should be sensitive to bats and other species adjacent of the Application Site’s context, including an appreciation close proximity to the Application Site as follows: to or within the Application Site, controlling light spillage of the surrounding land uses, its ecological and historical a. protect groundwater: the Application Site is located and protecting the dark corridor along the eastern edge; contexts. within an EA designated groundwater SPZ 1 and 2. The g. retain Edmonton Sea Cadets on-site: in the east of the a. reflect surrounding land uses and character: the design should protect the aquifers; Edmonton EcoPark adjacent to the River Lee Navigation Application Site is located in an industrial corridor and b. address flood risk: the Application Site is partly located is a wharf with a single storey building which is currently is directly adjacent to the LVRPA. Meridian Water a new within Flood Zone 2, with the remainder in Flood Zone 1. leased by LWL to the Edmonton Sea Cadets. The design mixed use residential development is proposed to the The Project should be designed to mitigate the effects of should make provision for the Edmonton Sea Cadets; south of the Edmonton EcoPark. The proposals should flooding and include flood compensation areas to allow and reflect its location and address the different uses and for any reduction in the floodplain; h. provide areas required for construction: temporary receptors appropriately. In this regard, the Application c. protect watercourses: Salmon’s Brook, Enfield Ditch facilities necessary to construction the Project should be should pay particular attention to the design of the and the River Lee Navigation are in or adjacent to the designed to facilitate the subsequent restoration of the southern part of the Application Site; and Application Site. The Project should be sensitive to these area used. b. be sensitive to views: the existing EfW facility and watercourses and not interfere with their ecological and stack is visible from a range of viewpoints. The scale water management functions; of the proposed facilities would also mean the Project d. respond to the Site of Metropolitan Importance for would be visible from a range of viewpoints, including Nature Conservation: part of the Application Site is from parts of the adjacent Green Belt. The Project should within a SMINC. The design should make provision for seek to minimise the visual effect of the massing of new this designation; facilities. e. respond to Green Belt: the land to the east of the Edmonton EcoPark falls within a Green Belt designation. The NPPF notes that the fundamental objective of the Green Belt is to prevent urban sprawl by keeping land permanently open. The design should respond to this designation through its proposals for this area;
NORTH LONDON WASTE AUTHORITY | NORTH LONDON HEAT AND POWER PROJECT | 47 SECTION 5. DESIGN OBJECTIVES AND PROPOSALS 5.2 DESIGN DRIVERS
6. ENGAGEMENT 7. LANDSCAPE AND ECOLOGY 8. DESIGN QUALITY
The Project should enable the continuation and enhancement The proposals should respond to the surrounding context, All buildings, structures and spaces in the Edmonton of community engagement and education activities including particularly the LVRP, and include a strong landscape and EcoPark should be of a high design quality which responds organised tours of the proposed ERF and other waste ecological rationale, as follows: to the sensitive wider context as well as its operational management facilities on the Edmonton EcoPark, including: a. respond to landscape context: the River Lee function. The Project should also respond to planned a. enable public access: the Project should welcome Navigation lies immediately east of the Edmonton improvements in the visual and environmental quality of the members of the public onto the Edmonton EcoPark and EcoPark and flows through the LVRP. The LVRP industrial estates in the Central Leeside area. The design of incorporate a dedicated visitor facility; and comprises waterways, reservoirs and green space and the Project should: b. promote engagement: where applicable, the proposed is designated as Green Belt. The Project should aim a. communicate Edmonton EcoPark’s functional facilities should engage with their surroundings through to respond to and engage with the landscape features identity: proposed buildings and structures should be the use of active frontages or other methods which surrounding the Application Site; designed to reflect and communicate the waste function communicate and promote the activities within the b. enhance ecological and biodiversity value: create of the Edmonton EcoPark; Edmonton EcoPark. opportunities to enhance the ecological and biodiversity b. provide coherent design: the design should provide value of the Application Site using species appropriate to visual coherence and complement other buildings and the local context; structures within the Edmonton EcoPark; c. integrate with surrounding landscape: integrate the c. create a legible design: the proposed buildings and on-site landscape including Salmon’s Brook, Enfield structures should comprise legible forms which reflect Ditch and land to the east of the Edmonton EcoPark with their industrial use, using materials that are appropriate adjacent areas such as the River Lee Navigation and the to its function as well as sensitive to its surroundings; wider LVRP; d. be a dynamic design: the buildings should be designed d. minimise ecological disturbance: the design should in a way which reflects the dynamic nature of the minimise disturbance to existing ecology, for example surroundings, considering all stationary and transitory through considering sensitive lighting design along the viewpoints into the Application Site; and River Lee Navigation. e. be durable: the materials proposed for buildings and structures should have an appropriate design and performance life and be adequately robust in their specification.
48 AD05.07 | DAS | OCTOBER 2015 | ARUP/GRIMSHAW